Personally i know that liver is good for u if u have low iron bc they tell me that at the WIC office since i have low iron. I dont believe it will hurt u bc if so they wouldnt have told me to eat it
The only problem with liver is that it contains a lot of vitamin A. Too much vitamin A can cause defects in early pregnancy, but there's nothing to prove that.
I read its best to limit your intake of beef liver or avoid it period. . I'm pretty sure as long as you don't eat it on a regular basis, you should be fine.
I tried researching it, but didn't get a clear answer.